I don't understand how to answer this question:
Discuss the environment and habitat of a dog and of a flea that lives on it

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?